Validation of anti-windup tuning rule in a solar furnace
DOI:
https://doi.org/10.17979/ja-cea.2026.47.13760Keywords:
PID control, Systems with saturation, Anti-windup, Back-calculation, Disturbance rejectionAbstract
Proportional-integral (PI) controllers are widely used in industry due to their simplicity and robustness. However, actuator
saturation can lead to the phenomenon of windup, which significantly degrades system performance. Among the most commonly
used anti-windup techniques, the back-calculation scheme stands out, the performance of which depends on the correct selection
of the tracking constant. Although classical tuning rules exist, these tend to yield conservative and limited results when compared
to real operating conditions. This work validates new tuning rules for the constant Tt, developed for measurable disturbance
rejection problems. The validation is carried out on a simulator of an SF60 solar furnace, characterised by non-linear dynamics,
physical constraints and disturbances associated with changes in solar irradiance. The results obtained show that the proposed
rules significantly improve the system’s performance compared to classical tuning strategies. These results demonstrate the
practical applicability and effectiveness of the proposed rules.
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Copyright (c) 2026 Malena Caparroz, José Luis Guzmán, Igor M.L. Pataro, Manuel Berenguel, Kristian Soltesz, Tore Hägglund
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